LayoutTests/fullscreen/full-screen-plugin.html

<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}
</script>
<div>
    <div>Test that plugin doesn't restart when taking it to full screen and back.</div>
    <div id="result">Test didn't run</div>
    <embed id="plugin" type="application/x-webkit-test-netscape" width="200" height="200"></embed>
</div>

<script>
function test()
{
    var callback;
    var fullscreenChanged = function(event)
    {
        if (callback)
            callback(event)
    };
    document.addEventListener('webkitfullscreenchange', fullscreenChanged);

    document.body.offsetTop;
    var plugin = document.getElementById('plugin');
    var testObject = plugin.testObject;
    testObject.property = 'foo'; // Verify that setting a property works before going fullscreen.

    var spanEnteredFullScreen = function(event) {
        setTimeout(function () {
            callback = function() {

                document.body.offsetTop;
                try {
                    // This will throw if going to fullscreen and back has restarted the plugin.
                    testObject.property = 'foo';
                    document.getElementById('result').innerHTML = 'SUCCESS';
                } catch (e) {
                    document.getElementById('result').innerHTML = 'FAIL';
                }

                if (window.testRunner)
                    testRunner.notifyDone();
            }
            document.webkitCancelFullScreen();
        }, 0);
    };

    callback = spanEnteredFullScreen;

    document.addEventListener('keydown', function () {
        plugin.webkitRequestFullScreen();
    });
    if (window.eventSender)
        eventSender.keyDown('a');
}

function checkForPlugin()
{
    var plugin = document.getElementById('plugin');
    if (plugin.testObject)
        test();
    else
        setTimeout(checkForPlugin, 100);
}

window.onload = checkForPlugin;

</script>